Oil & Gas
| Tue 14 Jul 2026
Beijing, July 14 -- Petrochina Co Limited has submitted a patent application for Method, Device and Equipment for Determining Grain Density of Shale Core, Medium and Product. Si Xueqiang, Chen Yang, Peng Bo, Dou Yang, Chen Xiguang, Meng Xiangchao, Xu Yang, Guo Huajun, Li Yazhe, Zou Zhiwen, Shan Xiang and Yi Junfeng developed the..